Paper-splitting machine.



G. R. CORNWALL.

PAPER SPLITTING MACHINE.

APPLICATION FILED NOV. 21. 1907.

1,165,074. Patented Dec.21,1915.

Illll UNITE *srATEs PATEN EEIE.

' GEORGE R. CORNWALL, 0F RYE, NEW YORK, AssIeNoIa y MESNE ASSIGNMENTS, TO

JAMES.G-. COFFIN, TRUSTEE.

rArER-srLrTTINe MACHINE.

Specification of Letters Patent. Patented Dec. 21, 1915.

Application filed November 21, 1907. Serial No. 403,224.

To all whom it may concern:

Be it known that I, GEORGE R. CORNWALL, a citizen of the United States, residing at Rye, in the county of WVestchester and State of New York, have invented new and useful Improvements in Paper-Splitting Machines, of which the following isa specification. I

. The invention relates to machines for splitting sheets of paper and has in view more especially, according to certain features of the invention,a machine forsplitting sheets of paper having printed matter on both sides so that the matter on one side and the matter on the other-sidemay be used separately in preparing printing plates by actinic action through the paper or otherwise.

Objects of the invention are to provide such a machine which will operate upon many various kinds of paper stock, which will split the sheets with. great facility andaccuracy and place them otherwisein condition'for the purposes specified and desired; which controls the splitting of the sheet so that each sheet resulting from the splitting operation is of a uniform thickness in all parts, and so that the sheets resulting from the splitting operation'are each of the same thickness or one of the resulting sheets is thinner than the other; the machine giving the least thickness to the side of the original sheet that the operator may desire. These and other objects of the invention will in part be obvious and part appear herein. I

' The invention consists in thenovel parts,

will in arrangements, combinations and improvements herein shown and described.

The accompanying drawings" referred to of a machine built in part' in accordance j with the principlesof theinvention; Fig. 2

is a corresponding front elevation; Fig. 3

is an end elevation; Fig. 4 a transverse central-section; and Fig. 5 is a fragmentary sectional view, partly diagrammatic.

In theillustrated embodiment, means are provided for applying a pull to one side of the sheet of paper which it is desired to split and also means for applying apull' on the other slde of the said sheet and according to certain features of the invention means are provided for determining the direction or. angle of the pull. It will be understood that with many kinds of paper stock this latter is important and desirable in order to get a uniform splitting of the sheet.

ri'ccording to certain features of the in 'vention, and as shown in the illustrated embodiment, the means for applying a pull to each side of the sheet comprises flexible members designed for attachment to the sides of the sheet to be split in connection with means for drawing the said flexible members apart. Each of said flexible members as they are drawn apart carries a portion of'the attached sheetwith'it and thus effects the splitting. The form of means for'drawing the said flexible members apart shown in the present embodiment,'comprises two cylinders, and the said cylinders, are

shown-arranged for rotation so as 'to draw the sald-flexible members away from each indicates a sheet of paper to be split, 2 represents a flexible member: attached to one side of the said sheet and 3 a flexible mem ber attached to the otherside of the said sheet. One of said flexible members may be attached to the sheet to be split overv the entire'extent or area of one side of the sheet, and the other flexible member may be similarly attached tothe other side of the sheet, and such an arrangement is contemplated by the invention in certain ofits aspects. As shown hereinthe flexible member=2 is connected to a cylinder-4 by suit able means suchwas' a longitudinal slot 5 while the'flexible member v3 is also connected to a cylinder 6 by a longitudinal slot of the machine, are mounted in a suitable supporting frame, as Will appear from the drawings.

"Means are provided, as hereinbefore indicated, for determining the direction or angle of thep'ullexerted on thetwo sides of the -7. The'said cylinders, and also other parts i sheet, and according to certain features of the invention it is contemplated to make said means settable for varlous angles so that whatever kind: of stock is being operated upon, the angle of pull may be predeter mined or adjusted in such manner .as to give the exact thickness for a stripped portion that may be desired. The form of the said means shown in the present embodiment comprises a directive device which may be relatively movable with respect to certain other parts of the mechanism in order to determine the angle of pull. Thesaid directivie device, as shown herein, comprises a block 8 provided'with a slot .9, through which the, sheet to be split andthe flexible members pass; movement of the directive device is about-a pivotal center, although it will be understood that other forms of movement may be used'in connection with the particular form of directivedevice or with other forms of directive device. Accordingly the block v8 is shown in the drawings as pivotally mounted upon the supporting frame of the-machine at 10 (see Fig. '3 of the" drawings). There are also provided devices for securing the block 8 at any angle to which itmay be set or adjusted. Any suitable devices may be employed for this purpose andwt'he form thereof hereinshown comprises a plate 11 attached to thebl-ockS and moving in close proximity to a slotted plate 12 mounted upon the frame of the machine and comprises also a device for clamping them "firmly together. The said clamping device is shown as a thumb-bolt 13 rotatably carried in the plate 11 and passing through the slot in the plate Suitable means for rotating the cylinders 4 and 6 are provided, the illustrated form thereof comprising a crank 14 fixed upon the shaft of one-ofthe cylinders and interm-esh- 'ing-gears 15, shown fixed upon the other ends of the "cylinder shafts. It will be understood therefore that in this embodiment the cylinders 4L and 6 rotat'eat. a uniform speed and in opposite directions. If desired, a'suitable means for holding the said cylinders stationary, as for instancevvhen the.

machine is being adjusted or when a sheet is being put in, may be, provided and such 7 means may be of any desired form. In the illustrated embodiment a form thereof is shown comprising a. pinlti passing through :an aperture in the frame of the machine and cntering an aperture in one of the said cylinders. n V I The manner of operation of the mechanism herein described is as follows: A sheet of paper 1 has attached to its two sides the flexible members 2 and 3 and the said -membersare alsoat-tached to the cylinders and 6; This may be done in any suitable way,

as by meansofan aqueous adhesive. The

In this embodiment the sheet 1 will be positionedanddirected generally by means of the block 8 and its slot 9.

When the crank 1a is rotated in the proper directionthe cylinders 4 and 6 will rotate, winding-up the flexible members 2 and 3 upon the said cylinders respectively, and as the saidfleXible members are "drawn away from each other each will carry the sideof the sheet of paper attached to it, thus split- .tingthesheet,substantially as is shown in The thickness of Fig. 5 of the drawings.

the split sheet upon'each side of the s-plit their cylinders and each face of the sheet The movable block 8 then separated fronrits respective flexible 7 member and the Ysplit sheet will then be ready for use in preparing a printing plate or for other purposes, as desired.

From all the foregoing it will be under stood thatv a machine has 'been'provided which realizes the objectsof-in ention and advantages herein .set forthtogether with other obgects and advantages.

I 'The inventionin' 'tsbroaderaspectsnot i limitedto the particularconstruction shown,

nor to any particular constructions by which it has been or'ay be carried into effect, as changes may. be made-therein without departing from the principles of the invention and without sacrificing its chief-advantages.

1 do claim asmy invention, and-dc sire to secure by Letters Patent, is: I

1. A :machine-for'splitting sheets of paper including in combination means for applying a pull to onejside of. the sheet, means for applying a pull to the other side of the sheet, andimeans for determining the angle ofpull. N

2. A machine forsplitting sheets of paper ;=inc1uding in combination means for applying a pull to oneside of the sheet, means for applying'a pull to the other side of the sheet, and selttable means for determining the angleio-f pull. r

r 3. A machine for splitting sheets of paper including in combination aflexible member forattachment to one s'ide; of thesheet,a

flexible member, for'attachment to the other side of the sheet, a .supp.ort, :means mounted "onand movable. relatively toksaid support comprising two members movable relatively to each other and COHI'PI'lSlDg a de lce for attaching one of said flexible members to.

.oneof said movable members, a device for attaching the other of said flexible members to the other of said movable members, and means for drawing said flexible members apart to split the sheet.

.members is drawn.

5. A machine for splitting sheets of paper including in combination a flexible member for attachment to one side of the sheet to be split, a flexible member for attachment to the other side of the sheet to be split, means for drawing said flexible members away from each other, and a directive device movable for determining the angle of pull of the said flexible members.

6. A machine for splitting sheets of paper including in combination two cylinders, means for connecting one of said cylinders and one side of'the sheet of paper, means for connecting the other cylinder and the other side of the sheet of paper, and means for rotating the said cylinders so as to draw the two sides of the sheet of paper away from each other and a mounting for said cylinders. I

a 7 A machine for splitting sheets of paper including in combination two cylinders, connections between one of said cylinders and one side of the sheet of paper, connections between the other cylinder and the other side of the sheet of paper, a directive'device for determining the angle of pull uponthe sheet of paper, and driving means for the said cylinders so as to draw the two sides of the sheet of paper away from each other.

8. A machine for splitting sheets of paper including in combination .two cylinders, means for attaching a flexible member to one of said cylinders, means for attaching a flexible member to the other of said cylinders, a flexible member for attachment to one of said cylinders and to one side of the sheet of paper, another flexible member for attachment to the other cylinder and to the other side of the sheet of paper, and means for rotating-the said cylinders so as to wind. the said flexible members upon said cylinders and thus draw the flexible members away from each other. i

9. A machine for splitting sheets of paper including in combination two cylinders, a flexible member for attachment to one of said cylinders and to one side of the sheet of paper, another flexible member for attachment to the other cylinder and to the other side of the sheet of paper, a directive device movable into various positions so as to determine the angle of pull upon th sheet of paper, and means for driving the 'said cylinders so as to draw the said flexible members away from each other.

10. A machine for splitting sheets of paper including in combination two cylinders, means for connecting one of said cylinders and one side of the sheet ofpaper, means for connecting the other cylinder and the other side of the sheet of paper, and means for rotating'the cylinders in opposite directions, thereby drawing the two surfaces of the sheet apart and winding them upon the two cylinders respectively, thereby splitting the sheet. 7 s

,11. A 'machine for splitting sheets of paper including incombination a flexible member for attachment to one side of a sheet of paper throughout its area, a flexible member for attachment to the other side of the sheet throughout its area, a support, a plurality of members mounted thereon movable relatively to each other, and means for attaching one of said flexible members to one of said movable members, means for attaching the other flexible member to the other of said movablermembers, and means for drawing said members apart at the same speed, so as to split the sheet, one part of the sheet going with the flexible member to which it is attached and the other part of the sheet going with the flexible member to which -it is attached, thereby splitting'the sheet.

12. ,A machine for splitting sheets of paper including in combination a flexible member for'attachment to one side of a sheet of paper throughout its area, a flexible member for attachment to the other wind each flexible member with its portion of the split sheet upon the cylinder to which the said flexible-member is attached, thereby splitting the sheet.

13. A machine for splitting sheets of a or includin in combination a flexible P P is member for attachment to one side of a sheet of paper, a: flexible member for attachment to the other side-of the sheet of paper, a movable directive device for the sheet of paper, and means for holding said directive device in any position to which it may be set.

the sheet. 7

Hole members to one of said movable members, means for attaching the other of said flexible members to the other of said movable'memb'ers, and means for moving said movable members away from each other to draw said flexible members apart to split 15; A machine for splitting sheets of paper including in combination a support, means mounted on said support for attachment to one side of the sheet of paper, means mounted on said support for attachment to the other side of the sheet of paper, and Winding means for each of said attached means, whereby the sheet is split and one of the split parts of the sheet wound with one-of said attached means and the other split part of the sheet wound with the other of said attached means.

I6. A machine for splitting sheets of paper including in combination a sheet adapted to be attached to one side of the sheet to be split, a sheet adapted to be attached to the other side of the sheet to be split, a support, a windable member mounted on said support and having means for engaging one of said sheets adapted to be attached to the sheet to be split, another windable member on said support and having means for engaging the other sheet adapted to be attached to the sheet to be split, and actuating means for said windable members.

17. A machine for splitting sheets of paper including in combination a supporting frame, a pair of cylinders-journaled therein, means whereby a" flexiblesheet may be detachably attached to each of-said cylinders, two flexible sheets, said flexible sheets being attached one to one side of the sheet to be split and the other flexible sheet being attached to the other side of the sheet to be'split, and means for rotating said cylinders at the same speed;

18. A machine for splitting sheets i of paper including-in combination a supporting frame, a pair of "cylinders mounted in stationary bearings in said frame and rotatabletogether in opposite directions, two

flexible sheets adapted to be attached to the opposite surfaces of the sheet of paper to be split, means for attaching said flexibl sheets to said cylinders, and means for rotating said cylinders. I V.

Copies of this 'batent may be obtained for two subscribing witnesses.

table together in opposite directions, two'- flexible sheets adapted to beattached to the opposite surfaces of the sheet of paper to be split, means for attaching said flexible sheets to said cylinders along or parallel to the adjacent edge of the sheet to be split,

and means for rotating said cylinders whereby as the sheet is split the line of cleavage is substantially parallel to the end of the sheet. p

20. A machine for splitting sheets of paper, including in combination'a flexible member for attachment .to one side of a sheet of paper, a flexible member for attachment to the other side of said sheet of paper, a support and two members-mounted upon said support and adapted to draw said flexible members apart with a uniform tension throughout and means for causing relative moyement of said two members.

- 1. machine for splitting sheets of paper, including in combination a flexible member for attachment to one side of a sheet of paper, a flexible member for attachment to the other side of said sheet of paper, a su port and two moving members mounted in parallelism upon said support for drawing said flexible members apart to split the attached sheet and means for efiecting relative movement between saidtwo members. r

22. A machine for splitting sheets of paper,- including in combination a flexible member for attachment to one :side of a sheet of paper, a flexiblemember for attachment to the other-side of said sheet of paper, a support and two" cylinders, rotatably mounted in parallelism'upon said support flexible member upon the other cylinder to split the sheet and means for rotating said cylinder a I a 1 In" testimony whereof,- I have signed my name to this specification, in the presence of V GEORGE lVitnesses: v 7

JoHN D. MORGAN, FRANCES MnIN'cKm CORNWALL.

five cents each, by addressing the Commissioner of Patents, Washington,- D. C. 

